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参数资料
| 型号： | XC9303B093KR-G |
| 厂商： | Torex Semiconductor Ltd |
| 文件页数： | 1/20页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BST PWM 8-MSOP |
| 标准包装： | 1,000 |
| PWM 型： | 控制器 |
| 输出数： | 1 |
| 频率 - 最大： | 345kHz |
| 占空比： | 88% |
| 电源电压： | 2 V ~ 10 V |
| 降压： | 是 |
| 升压： | 是 |
| 回扫： | 无 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 无 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 8-TSSOP，8-MSOP（0.118"，3.00mm 宽） |
| 包装： | 带卷 (TR) |
XC9303 Series
ETR0602_004
High Efficiency, Synchronous Step-Up & Down DC / DC Controller ICs
☆ Green Operation Compatible
■ GENERAL DESCRIPTION
The XC9303 series is highly efficient, synchronous PWM, PWM/PFM switchable step-up & down DC/DC controller ICs.
A versatile, large output current and high efficiency, step-up/down DC/DC controller can be realized using only basic
external components - transistors, coil, diode, capacitors, and resistors for detecting voltages. High efficiency is obtained
through the use of a synchronous rectification topology. The operation of the XC9303 series can be switched between PWM
and PWM/PFM (auto switching) externally using the PWM pin. In PWM/PFM mode, the XC9303 automatically switches
from PWM to PFM during light loads and high efficiencies can be achieved over a wide range of output loads conditions.
Output noise can be easily reduced with PWM control since the frequency is fixed. Synchronous rectification control can be
switched to non-synchronous by using external signals (MODE pin). High efficiency can be regulated at heavy loads when
synchronous operation. The XC9303 has a 0.9V (±2.0%) internal voltage supply and using externally connected
components, output voltage can be set freely between 2.0V to 6.0V. With an internal 300kHz switching frequency smaller
external components can be used. Soft-start time is internally set to 10ms and offers protection against in-rush currents
when the power is switched on and prevents voltage overshoot.
■ APPLICATIONS
● PDAs
● Palmtop computers
● Portable audios
● Various power supplies
■ FEATURES
Input Voltage Range
Output Voltage Range
Oscillation Frequency
Output Current
Stand-By Function
Maximum Duty Cycle
High Efficiency
Soft-Start Time
: 2.0V ~ 10V
: 2.0V ~ 6.0V
(set freely with V FB =0.9V)
: 300kHz (±15%)
: 800mA(V IN = 4.2V, V OUT =3.3V)
: 3.0 μ A (MAX.)
: 78% (TYP.)
: 84% (TYP.)
: 10ms (internally fixed)
Package : MSOP-8A
Environmentally Friendly: EU RoHS Compliant, Pb Free
■ TYPICAL APPLICATION CIRCUIT
<XC9303B093K OUTPUT= 3.3V>
■ TYPICAL PERFORMANCE
CHARACTERISTICS
● Efficiency vs. Output Current
XC9303B093K(300kHz, V OUT =3.3V)
Tr1:Pch MOSFET
:CPH6315
Tr2:Nch M OSFET
L:22uH
CDRH127/LD
SD:CM S02
V OUT : 3 . 3 V
100
90
L=22uH(CDRH127/LD), CL=94uF(Tantalum),SD:CMS02
Tr1:CPH6315, Tr2:CPH3409, Tr3:CPH3409
PW M/PFM Switching Control
:CPH3409
CIN :47uF
Tr3:Nch MOSFET
:CPH3409
80
70
PWM
EXT 1
V DD
PWM
EXT 2
GND
FB
CFB
:62pF
RFB
:200 k Ω
CL :
47uF X2
60
50
40
VIN=2.7V
4.2V
CE
CE
NC
30
V IN :2.0V~10V
RFB
:75 k Ω
20
PW M Control
10
0
0.1
1
10
100
1000
10000
Output Current I OUT (mA)
1/20
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相关代理商/技术参数 |
参数描述 |
|---|---|
| XC9303B093KRN | 制造商:Torex Semiconductor LTD 功能描述: |
| XC9303B93KL | 制造商:TOREX 制造商全称:Torex Semiconductor 功能描述:Step-Up & Down DC / DC Controller ICs |
| XC9303B93KR | 制造商:TOREX 制造商全称:Torex Semiconductor 功能描述:Step-Up & Down DC / DC Controller ICs |
| XC9303E093KL | 制造商:TOREX 制造商全称:Torex Semiconductor 功能描述:High Efficiency, Synchronous Step-Up & Down DC / DC Controller ICs |
| XC9303E093KR | 制造商:TOREX 制造商全称:Torex Semiconductor 功能描述:High Efficiency, Synchronous Step-Up & Down DC / DC Controller ICs |
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